EXCLUSIVE: To get the "20th hijacker" to talk, the U.S. used a wide range of tactics. A secret log reveals the first documented view of how Gitmo really works

GUARDING GITMO:
A military policeman and his guard dog keep watch at the U.S. naval base in Guantanamo

The prisoner known around the U.S. naval station at Guantánamo Bay as Detainee 063 was a hard man to break. Defiant from the start, he told his captors that he had been in Afghanistan to pursue his love of falconry. But the young Saudi prisoner who wouldn't talk was not just any detainee. He was Mohammed al-Qahtani, a follower of Osama bin Laden's and the man believed by many to be the so-called 20th hijacker. He had tried to enter the U.S. in August 2001, allegedly to take part in the Sept. 11 attacks. But while Mohammed Atta, the eventual leader...